Post Malone had already been announced as a performer at the 61st Grammy Awards, but the addition of Red Hot Chili Peppers is new. It's unclear if they will be performing a Post Malone song, an RHCP song, or something else. Perhaps a mashup of "Psycho" and "Sir Psycho Sexy"? A press release promises that it's "bound to be an unforgettable Grammy moment."

Beyond that, Miley Cyrus, Brandi Carlile and H.E.R. have all been added to the event.